---
product_id: 105448055
title: "Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD"
brand: "geekpure"
price: "€ 150.39"
currency: EUR
in_stock: true
reviews_count: 11
category: "Geekpure"
url: https://www.desertcart.hr/products/105448055-geekpure-3-stage-portable-aquarium-reverse-osmosis-ro-drinking-water
store_origin: HR
region: Croatia
---

# 100 GPD ultra-pure output 3-stage advanced filtration DIY easy install kit Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD

**Brand:** geekpure
**Price:** € 150.39
**Availability:** ✅ In Stock

## Summary

> 💧 Pure water, pure power — your hydration upgrade awaits!

## Quick Answers

- **What is this?** Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD by geekpure
- **How much does it cost?** € 150.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/105448055-geekpure-3-stage-portable-aquarium-reverse-osmosis-ro-drinking-water)

## Best For

- geekpure enthusiasts

## Why This Product

- Trusted geekpure brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Efficient Flow:** Generates 100 gallons of purified water daily with a 1:2 waste ratio
- • **Versatile Use Case:** Perfect for aquariums, baby formula, coffee, and travel hydration needs
- • **Effortless DIY Setup:** Comes mostly pre-assembled with clear instructions—no plumber needed
- • **Smart & Compact Design:** Tankless, portable system fits anywhere from apartments to yachts
- • **Crystal Clear Hydration:** Removes contaminants down to 0.0001 micron for pristine water quality

## Overview

The Geekpure 3 STAGE Portable Reverse Osmosis System delivers 100 gallons per day of ultra-pure water by filtering down to 0.0001 microns, removing heavy metals, chlorine, fluoride, and more. Its compact, tankless design and quick-push fittings enable easy DIY installation anywhere—from apartments to RVs—making it ideal for aquariums, drinking, and culinary uses. Certified to NSF/ANSI 58 standards, this system offers professional-grade filtration with a 1-year warranty and 24/7 support, ensuring fresh, healthier water on demand.

## Description

desertcart.com: Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD : Pet Supplies

Review: Best RO system - This little powerhouse is a magnificent marvel of technology. For less than 60 dollars, this system can not be beat! Comes mostly assembled. All I had to do was insert the RO membrane into the cylinder and connect water input. This does NOT come with a garden hose adapter, so I purchased one separately that was listed in the "Frequently bought together" list. We have terrible well water that comes out RED sometimes from all the clay deposits. My EC meter measures 650ppms on our raw well water (500ppm scale). The water produced from the clean water line of this filter reads 0PPM! I have had this unit for a couple weeks now and it has produced over 200 gallons of pure, clean, great tasting water for me and my plants! If you are a gardener, this RO system is a MUST! If you are a clean water fanatic, this system is a MUST! Great tasting water! SO happy with this purchase! The replacement filters are only 37 dollars for the whole set, which is VERY affordable! A friend of mine has had this RO system for 2 years and has never even replaced his filters, and his still works great! It may not be the fastest RO system on the market but if price is an issue, BUY THIS UNIT!! I suggest buying a tank or 5 gallon water jugs to store the clean water in, as it takes about 5 minutes to get a full 16 oz glass of water. Also, does not require crazy high water pressure. I'd say our water pressure is no more than the average household water pressure and the system still performs just fine. I am telling ALL of my friends about this great filter system! I wish I had found this a long time ago! Thank you OSMOPUR for making a great, affordable RO system! Finally, EVERYONE can afford clean water!
Review: Works as advertised. - Easy to set up and use. Works as advertised. Doesn't leak, makes lots of water. I hooked it up to a 1/4 inch plastic ice maker supply line in my garage. I used Shark-bite tee and shutoff valve, very easy. I use it to make clean water for my carnivorous plants, sure beats going to the store to buy six gallons of distilled water every week.

## Features

- 3 STAGE Reverse Osmosis drinking water filtration system down to 0.0001 micron,Reduce TDS,Heavy Metal,Arsenic,Lead,Mercury,Fluoride ,Chlorine and more .Special design for your aquariums use or residential use. Experience fresher healthier baby formula,tea and coffee,better tasting foods and crystal clearer ice cubes
- All tube,quick push fittings,thin-film composite Ro membrane complies with NSF/ANSI standard 58
- SMART-Smart size ,Capacity:100 Gallon per 24 hours,You may install it anywhere, the ratio of pure water and waste water is 1:2.Please flush new filters 30 minutes
- Tankless and without faucet,Perfect for apartment, RV's, business travel, vacation, yacht, boat, Mobil home or anywhere you need the pure water.It can not work on and off automaticlly.but add-On Drinking Water Kit with 2.8 Gallon Tank available, desertcart asin : B07DBZN79S or B0897G9R6T or B08X28QFB6
- System comes with all parts for an easy DIY experience,Don’t waste money for professional installation ,you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.1 year manufacturer warranty,no need registration
- Replacement filters set ASIN: B07KHWKVCS via desertcart ,Upgrade DI filter :B09NPRN4KJ,please flush new filters 30 minutes
- Professional Manufacturer with 20+ Years of Expertise | 24/7 Technical Support
- Feed Water Condition:Water Pressure: 40-100 psi,Temperate:40-110°F/5-45°C,Ph:3.0 -11.0,Max TDS :1000 ppm tap water or well water
- The sediment filter reduces sand, silt, and more, which affect the quality and appearance of water. The carbon block filter reduces chlorine and conditions water before it reaches the RO membrane.
- Life time :6-12 months (Depends on Usage Amount and Feed Water Quality)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H2TSNZM |
| Best Sellers Rank | #42,413 in Pet Supplies ( See Top 100 in Pet Supplies ) #197 in Aquarium Filters |
| Brand | Geekpure |
| Customer Reviews | 4.2 4.2 out of 5 stars (944) |
| Date First Available | November 10, 2018 |
| External Testing Certification | NSF |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 pounds |
| Item model number | 3 STAGE |
| Manufacturer | Geekpure |
| Material | Polyamide,polysulfone,polypropylene,carbon,non-woven fabric |
| Number of Items | 1 |
| Product Benefits | Tankless and without faucet,Perfect for apartment, RV's, business travel, vacation, yacht, boat, Mobil home or anywhere you need the pure drinking water |
| Product Dimensions | 9.2"D x 14.8"W x 5.8"H |
| UPC | 610895384712 |
| Unit Count | 1.0 Count |

## Product Details

- **External Testing Certification:** NSF
- **Item Weight:** 4 Pounds
- **Material:** Polyamide,polysulfone,polypropylene,carbon,non-woven fabric
- **Product Dimensions:** 9.2"D x 14.8"W x 5.8"H

## Images

![Geekpure 3 STAGE Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD - Image 1](https://m.media-amazon.com/images/I/61hqwFFd+PL.jpg)

## Questions & Answers

**Q: What is the average TDS reading you should get from the filtered water?**
A: The rejection rate is 95% min, it depend on feed water TDS. if feed water TDS is 300 ppm , filtered water is around 5-15 ppm. Please remember to flush new filters 30 minute before you test it. thanks.

**Q: Is this ro or rodi? Looking for a strictly ro system for home brewing. Thank you.**
A: It is 3 stage Ro system with PP sediment , Ro membrane and carbon filter.The product water is drinkable and same as bottle water.

**Q: Do you need a tank to filter water for a refrigerator with ice maker and water dispenser?**
A: yes, sure, it is special for aquarium use ,so don't need tank and faucet.if there is not tank, the system work continued . if you use  for a refrigerator ,please consider complete Ro system.product ASIN:B0741599C2 for Ro system and B07D9J7FJX for ice maker set . there is tank and faucet.

**Q: Is there a garden hose adapter included?**
A: Please check photos in the listing, the 4th one, there is adapter size at 1/2"x1/2"x1/4". is it useful to you?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best RO system
*by T***R on January 3, 2020*

This little powerhouse is a magnificent marvel of technology. For less than 60 dollars, this system can not be beat! Comes mostly assembled. All I had to do was insert the RO membrane into the cylinder and connect water input. This does NOT come with a garden hose adapter, so I purchased one separately that was listed in the "Frequently bought together" list. We have terrible well water that comes out RED sometimes from all the clay deposits. My EC meter measures 650ppms on our raw well water (500ppm scale). The water produced from the clean water line of this filter reads 0PPM! I have had this unit for a couple weeks now and it has produced over 200 gallons of pure, clean, great tasting water for me and my plants! If you are a gardener, this RO system is a MUST! If you are a clean water fanatic, this system is a MUST! Great tasting water! SO happy with this purchase! The replacement filters are only 37 dollars for the whole set, which is VERY affordable! A friend of mine has had this RO system for 2 years and has never even replaced his filters, and his still works great! It may not be the fastest RO system on the market but if price is an issue, BUY THIS UNIT!! I suggest buying a tank or 5 gallon water jugs to store the clean water in, as it takes about 5 minutes to get a full 16 oz glass of water. Also, does not require crazy high water pressure. I'd say our water pressure is no more than the average household water pressure and the system still performs just fine. I am telling ALL of my friends about this great filter system! I wish I had found this a long time ago! Thank you OSMOPUR for making a great, affordable RO system! Finally, EVERYONE can afford clean water!

### ⭐⭐⭐⭐⭐ Works as advertised.
*by J***Y on October 18, 2025*

Easy to set up and use. Works as advertised. Doesn't leak, makes lots of water. I hooked it up to a 1/4 inch plastic ice maker supply line in my garage. I used Shark-bite tee and shutoff valve, very easy. I use it to make clean water for my carnivorous plants, sure beats going to the store to buy six gallons of distilled water every week.

### ⭐⭐⭐⭐ Good, affordable R/O System
*by V***R on June 30, 2024*

I’ve installed 4 or 5 R/O systems in places I’ve lived to get bottled-water quality from the tap. I prefer to get rid of as much chlorine, lead, and fluoride as possible. Good clean taste - or lack of taste - is also important. I chose this unit to produce clean drinking water in my travel trailer as there really isn’t room for a pressure tank like most R/O systems. The unit works well and at ~50 psi produces R/O filtered washer at a pretty high rate. Easily several gallons an hour. The unit is compact and I bundle it up and store it away after filling all of my jugs and bottles. Without this unit, I’d be going through several 24 or 36 packs of half-liter plastic bottles a week. That’s just too much waste. I refill the better-quality bottles and save the plastic/planet. Two minor downsides that I noticed: Description says that unless you specify otherwise, you’ll receive a garden hose thread adapter. That’s not what was in the package. My kit came with a whole standard “under sink” hardware kit. Self-piercing valve, shut-off valve adapter for typical supply lines, and the clap/tap that fits your drain line for the waste water tubing. There was done other valve in there that I couldn’t quite figure out. At any rate, if you want to hook this up to a hose bibb, you’ll need a few fittings. I also noticed that the tubing arrangement as shipped routes the water through a carbon filter -before- the R/O membrane. All of the other systems I’ve installed touted the water through the carbon filter at the very last stage. Though this may be due to this system not having a tank, I would think it’s a bit of a waste to be using up the carbon filter’s life filtering water that’s going to go down the drain. I may read-route the tubing to sent the water through the carbon filter last. At any rate, an efficient and affordable solution to the need for high-quality filtered water. You may just need to run to the local hardware store for a few stray bits and pieces.

## Frequently Bought Together

- Geekpure 3 Stage Portable Aquarium Reverse Osmosis RO Drinking Water Filter System-100 GPD
- Laundry Garden Hose Adapter for Reverse Osmosis
- 1/4 inch Tube Float Valve Kit for RO Water Reverse Osmosis System water filter Push in to Connect Pipe Hose Tube Fittings CCK tube（ball valve +L+15 feet pipe） (blue)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-01*